Xamarin.Android - Integrated environment for building not only native Android but iOS and Windows apps too.
Optimizely - A/B testing you'll actually use.
RAD Studio - RAD Studio 10.2 with Delphi Linux compiler is the fastest way to write, compile, package and deploy cross-platform native software applications. Learn more.
VWO - Use VWO to tweak, optimize & personalize your website with minimal IT help.
Rider - Rider is a cross-platform .NET IDE based on the IntelliJ platform and ReSharper.
Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.